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Apparatus for displaying operation sequence of numerically controlled machine tool

  • US 5,191,538 A
  • Filed: 08/03/1990
  • Issued: 03/02/1993
  • Est. Priority Date: 08/31/1989
  • Status: Expired due to Fees
First Claim
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1. An apparatus for displaying an operation sequence of a machine tool which is controlled by a numerical controller in accordance with a numerical control program, said apparatus comprising:

  • operation memory means for memorizing data indicating successive operations;

    numerical command memory means for memorizing data indicating successive numerical commands;

    first memory control means for storing into said operation memory means data indicating successive operations instructed by an operator through command switches;

    second memory control means for storing into said numerical command memory means data indicating successive numerical commands, which are commanded by a manual operation or by the numerical control program during the successive operations;

    stopping means for stopping the operations of said first memory control means and said second memory control means when a malfunction occurs, anddisplay control means for displaying on a display device information indicating the successive operations together with the executed successive numerical commands based upon the data stored in said operation memory means and said numerical command memory means.

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